According to drying, which type of f dever result in uniform distribution
of heat.
of heat.
Anonymous Quiz
18%
a- Moving-bed dryers
37%
b- Fluidized-bed dryers
12%
c- Pneumatic dryers
18%
d-Static-bed dryers
15%
e- All of the above
Regarding to the dryer, advantage(s) of Fluidized Bed Dryer
Anonymous Quiz
8%
a-High drying rate due to efficient heat and mass transfer
9%
b-The drying occur at constant rate because all the surface of particles subjected to heat uniformly
8%
c-More spherical freeflowing particles can obtained reduce the problems of aggregation & migration
15%
d-Both a and b
60%
e-All a, b and c
Regarding to non-thermal method of sterilization, a number of vitamins, antibiotics and
hormones in the dry state have been successfully sterilized
hormones in the dry state have been successfully sterilized
Anonymous Quiz
15%
a-Dry heat
9%
b-Moist heat
35%
c- Radiation
16%
d-Surface disinfection
25%
e-None of the above
All the following statements are true regarding drying EXCEPT
Anonymous Quiz
11%
a- The extraction of liquid from a solid is a form of drying
15%
b-Drying and evaporation are different terms
12%
c- Thermal and non-thermal methods could be used for drying
44%
d-Drying is the complete removal of liquid from the material
17%
e-In drying moisture is transferred from the material inte an unsaturated vapor phase
Regarding drying, Non-thermal method/s of drying is/are
Anonymous Quiz
7%
a- squeezing of a wetted sponge
9%
b-extraction of liquid from a solid by use of a solvent
5%
c-use of desiccants
5%
d. use of a sulfuric acid column
74%
e. All of the above
Regarding solid drying, the ratio of the wt of water in sample to wt of drys multiply by
%100 isknown as
%100 isknown as
Anonymous Quiz
13%
a dry wt
11%
b-wet wt
18%
C-LOD
53%
d- MC
6%
e-None of the above
❤1
Regarding industrial processing, what is industrial processing that provides reduction the
bulk and the weight of materials
bulk and the weight of materials
Anonymous Quiz
3%
a-mixing
18%
b-Milling
71%
c- drying
5%
d-Filtration
3%
e-Sterilization
Regarding drying of solids, the data from drying rate is plotted as moisture content versus
time, at no more moisture is replaced and dry spot appears that represent
time, at no more moisture is replaced and dry spot appears that represent
Anonymous Quiz
13%
a- Equilibrium moisture content
53%
b-Critical moisture content
14%
c-First falling rate period
12%
d-Second falling rate period
8%
e-Constant rate period
Regarding theory of drying, the driving force for heat transfer during drying process is:
Anonymous Quiz
35%
a-Temperature differential
9%
b-The rate of evaporation
15%
c-The latent heat of vaporization
7%
d. The rate of diffusion of moisture
34%
e- All of the above
👍1
Regarding type of dryers, what are factors affecting selection of dryer?
Anonymous Quiz
16%
a-Heat sensitivity of the material to be dried and physical nature of the material
6%
b-Nature of liquid to be removed and the scale of operation
70%
c-Heat sensitivity of the material to be dried, physical nature of the material, nature of liquid ..
4%
d. The scale of operation
3%
e-Physical nature of the material
🔥1
Regarding drying, for effective drying conditions which processing factor is essential?
Anonymous Quiz
7%
a-size
8%
b-Weight
7%
c-Pressure
72%
d. Humidity
7%
e-None of the above
🤔1
Regarding drying, which of the following is not a common method of drying in industrial pharmacy
Anonymous Quiz
16%
a-freeze drying
5%
b-Spray drying
14%
c-Vacuum-drying
61%
d- boiling
3%
e-non of above
Regarding classification of dryers, tray dryer is example of
Anonymous Quiz
45%
a-Static-bed dryer
18%
b-Moving-bed dryers
18%
c-Fluidized-bed dryers
10%
d-Pneumatic dryers
8%
e-Freeze dryer
Regarding Classification of dryers, which type dryers used for drying granular solids?
Anonymous Quiz
5%
a-Static-bed dryer
18%
b-Moving-bed dryer
56%
c-Fluidized-bed dryer
10%
d-Spray dryer
10%
e-Gongealing dryer
Regarding Drying Methods, at which stage of freeze drying, the latent heat of sublimation
must be provided and the vapor removed
must be provided and the vapor removed
Anonymous Quiz
13%
a-Pre-freezing
46%
b-Primary drying
16%
c-Vacuum
5%
d-Secondary drying
21%
e- All of the above
❤2
Classification of dryer, microwave is an example of
Anonymous Quiz
66%
a-accelerated electron dryer (heat is developed internally)
7%
b- Freeze Dryer
12%
c- Flash dryer
9%
d- fluidized bed dryer
5%
e- Turbo-tray dryer
Regarding drying, in amorphous solids, all of the following statements are true, EXCEPT
Anonymous Quiz
5%
a- The moisture is an integral part of the molecular structure
15%
b- Moisture is entrapped in fine capillaries and small interior pores
6%
c- Materials such as starch, casein fall into this category
59%
d-Moisture movement is faster in amorphous solids than crystalline one
14%
e-The liquid diffuses through structural obstacles caused by the molecular configuration
تعديل
Concerning fluid mixing, all the followings are true EXCEPT
Concerning fluid mixing, all the followings are true EXCEPT
Anonymous Quiz
18%
a- Propellers may be either right- or left-handed
10%
b. The three-blade design is most commonly used with fluids
38%
c- The primary effect of a propeller is due to tangential flow
20%
d- Turbines can be operated satisfactorily in fluids 1000 times more viscous than fluids
15%
e-Power may be supplied to the fluid mass by means of an impeller, air stream, or liquid jet
هاي الاسئلة الوزارية للدور الاول.
المواضيع : Mixing , milling & drying.
*الاسئلة مو اني حليتها ، الحل من الملف الفوك ، فَ إذا اكو مشكلة بفد نقطة كولولنا حتى نصححها .. اني عبالي ادققها بس الصراحة ماكو وقت ، بس كتابة الاسئلة اخذت وقت فوك ال4 ساعات تقريبًا.
المواضيع : Mixing , milling & drying.
*الاسئلة مو اني حليتها ، الحل من الملف الفوك ، فَ إذا اكو مشكلة بفد نقطة كولولنا حتى نصححها .. اني عبالي ادققها بس الصراحة ماكو وقت ، بس كتابة الاسئلة اخذت وقت فوك ال4 ساعات تقريبًا.
👏8❤6🔥1🙏1💔1